Improved resolution on the phylogenetic relationships among Pseudomonas by the combined analysis of atpD, carA, recA and 16S rDNA
Improved resolution on the phylogenetic relationships among Pseudomonas by the combined analysis of atpD, carA, recA and 16S rDNA
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DOI：
10.1023/b:anto.0000024910.57117.16
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发表时间：
2004-08-01
影响因子：
2.6
通讯作者：
Young, JM
中科院分区：
文献类型：
--
作者：
Hilario, E;Buckley, TR;Young, JM
据报道，对假单胞菌属细菌的代表进行了一项研究，分析了具有完全不同特性和进化限制的四种分子序列的组合数据集。通过分层假设检验程序来描述每个数据集，获得最佳进化模型，并在似然准则下呈现和分析组合数据集。由于各个数据集的协同效应，基于不同谱系的组合数据集分析的假单胞菌类群的分辨率有所提高。未解决的荧光谱系，以及单个数据集树中其他弱支持的谱系，应在生化和分子水平上进行详细修改。讨论了恶臭假单胞菌生物变种的分类地位。
A study of representatives of the bacterial genus Pseudomonas, analysing a combined data set of four molecular sequences with completely different properties and evolutionary constraints, is reported. The best evolutionary model was obtained with a hierarchical hypothesis testing program to describe each data set and the combined data set is presented and analysed under the likelihood criterion. The resolution among Pseudomonas taxa based on the combined data set analysis of the different lineages increased due to a synergistic effect of the individual data sets. The unresolved fluorescens lineage, as well as other weakly supported lineages in the single data set trees, should be revised in detail at the biochemical and molecular level. The taxonomic status of biovars of P. putida is discussed.